Bicycle accessories are additional items that enhance the functionality, safety, and comfort of riding a bicycle. Common accessories include helmets for head protection, lights for visibility during low-light conditions, and locks to secure the bike when parked. Other popular items are water bottles and cages to stay hydrated, as well as pumps for maintaining tire pressure. Additionally, accessories can improve the riding experience. Bags and panniers provide storage for personal items, while fenders help keep the rider dry in wet conditions. Reflectors and bell add safety features, making it easier for others to see and hear the cyclist on the road.